Crown cap spotting apparatus



Dec. 18, 1945.

I 1 E. PEARSON 2,391, 0

CROWN CAP SPOTTING APPARATUS Filed Nov. 50, 1942 a sheets-sheet '1 Dec. 18, 1945'. P. E. PEARSON CROWN CAP SPOTTING APPARATUS 8 Sheets-Sheet 2 Filed NOV. 50, 1942 I Dec. 18, 1945.

P. E. PEARSON VCROWN CAP SPOTTING APPARATUS Filed Nov. 30, 1942 a Sheets-Sheet 3 Dec, 18, 1945.. P. E. PEARSON CROWN CAP SPOTTING APPARATUS Filed Nov. 50, 1942 8 Sheets-Sheeii 4 Dec. 18, 1945.

P. E. PEARSON CROWN CAP SPOTTING APPARATUS v Filed Nov. :50, 1942 8 Sheets-Sheet 5 Dec. 18, 1945.

P. E. PEARSON CROWN GAP SPOTTING APPARATUS v Filed Nov. 30, 19 42 8 Sheets-Sheet 6 Dec. 1-8, 1945. P. E. PEARSON CROWN GAP SPOTTINQ AfPKRATUS 8 Sheets-Sheet 7 Filed Nov. 30, 1942 H ax H 7 mud" 5 g m n Dec. 18, 1945. P. E. PEARSON I CROWN CAP SPOTTING APPARATUS Filed N v; 30, 1942 a Sheets-Sheet a w; We

' PatentedDec. 18, 1945 CROWN clusro'r'rmc APPARATUS Paul E. Pearson, Chicago, 111., assignor to Continental Can Company, Inc., New York, N. Y.,

aeorporation of New York 1 Application November 30; 1942, Serial 20 Claims.

The invention relates generally to apparatus for forming and afiixing center spots to container closure caps of the crown type, each such cap includinga metallic cup having a skirt adapted to fit over and grip the pouring neck of a can, bottle, or other container and a sealing pad of cork or other suitable yieldable material for engaging said nleck and effectively sealing the con- .tents of the container, and said invention primarily seeks to provide certain new and useful improvements over the machine structure disclosed in my U. S. Letters Patent, filed October 28, 1938, No. 2,309,667, issued February 2; 1943, which said improvements are designed to provide complete control of the spots from the time they are formed until they are aflixed in proper centered relation in the crown caps and yet assure against gumming up of the forming punches by application of heat to the spot material at or closely adjacen. the punches.

Closure caps designed for use on containers for beer or similar beverages usually have the sealing pads thereof faced with an impervious liner disk of aluminum or other foil or treated paper so as to prevent direct contact between the beverage and the pad and also to prevent leakage of gases.

It has been found advantageous to employ facing disks of the center spo type, that is to say, disks of a diameter less thanthat of the pad so' as to protect the beverage from pad contact and yet permit contact between the container neck and an annulus of pad surface so as to provide the most effective seal possible. The afllxing of lining disks to cap pads, particularly disks of the center spot type, has presented numerous problems. Probably the most effective manner of aflixing the disks has been by use of a heat fusible adhesive, that is to say, an adhesiv normally non-tacky but rendered tacky by application of 'heat. The positioning of the small diameter spots in perfectly centered relation on the pads in the crown caps makes it necessary to maintain complete control of the spots from the moment they are formed throughout the handling thereof including the heating and affixing steps, and the heating of the spots must be ac-,

complished in a manner for assuring against heating of the spot forming punch and die equipments or the spot material at the spot forming station because the application of heat in this region will result in gumming up of the punch-. ing equipment and faulty operation and stoppages of the machine. It is the purpose of the invention to provide efficiently operating means for maintaining the desired control of the spots from the time of their formation to the time of their application to the crown caps and which is designed to assure against objectionable application of heat at the spot forming station.

In its more detailed nature the invention seeks to provide, in combination, spot punching means, a transfer rotor having a multiple of spot receiving stations thereon and means at each station for receiving formed spots directly from the punching means and holding the same, means for indexing the transfer rotor, a carrier rotor having a multiple of spot carrier stations thereon and means at each station for receiving spots from the transfer rotor and holding the same,

means for indexing the carrier rotor, means disposed remotely from the transfer rotor for heating spots held on the carrierrotor, and means for bringing about engagement of the carrier rotor borne heated spots with crown caps for affixing the spots in centered relation in said caps.

An object of the invention is to provide an apparatus of the character stated in which the spot receiving and holding means on both rotors are in the nature of radially supported cup-like receptacles, and in which means is included for positively stripping the spots from the transfer rotor receiving means and placing them in the carrier rotor receiving means.

Another object of the invention is to provide an apparatus of the character stated in which the spot stripping and placing means effective to transfer the spots from the transfer rotor to the carrier rotor includes a stripper plunger axially reciprocable in each cup-like receptacle at each transfer rotor station, and an actuator bar common to the plungers at each said station, and cam actuated means for reciprocating said plungers.

With the above and other objects in view that will hereinafter appear, the nature of the invention will be more fully understood by following the detailed description, the appended claimsand the several views illustrated in the accompanying drawings.

In the drawings:

Figure 1 is a front elevation of a machine embodying the invention, parts being broken away and in section.

Figure 2 is a fragmentary rear the cam shaft.

Figure 3 is a fragmentary vertical section taken through punch housing and frame bed across the position of the punch slide.

F gure 4 is a fragmentary vertical cross secelevation, parts being broken away and in section at the plane of rotor and a portion of the carrier rotor,

Figure is a fragmentary plan view illustrating the carrier rotor, the transfer rotor and a portion of the spot forming means. 1

Figure 6 is a fragmentary vertical cross section taken on the line 66 on Figure 5.

Figure '7 is a fragmentary vertical longitudinal section taken through the axis of the transfer rotor. I

Figure 8 is an enlarged fragmentary vertical cross section on the line 88 on Figure 5.

Figure 9 is an end elevation of one of the carrier rotor borne spot carrier elements.

Figure is an end elevation of one of the transfer rotor borne spot carrier elements.

The present invention relates principally to certain new and useful improvements in the particular form of crown cap spotting machine disclosed in my U. S. Letters Patent, No. 2,309,667 issued February 2, 1943, the improvements residing in a novel arrangement of spot carrier rotor, transfer rotor and punching equipment desired to assume punch control of the spots from the time of their formation to the time of their bed structure 5 mounted on supporting legs 6.

A drive motor-l is providedand drives the power shaft 8 through suitable pulley and belt connections 9. The shaft 3 in turn drives the main cam shaft 10 through worm and Wheel connections H, and the shaft in is equipped with an indexing cam l2 which engages station rollers I3 projecting from the drive disk l4 secured upon the carrier rotor shaft l5 and serves to index the shaft l5 and the rotor fixed thereon station-by-station in the manner well-known in the art.

As in the machine disclosed in the previously filed application a carrier rotor l6 which is secured on the rotor shaft i5 is provided with eight faces or stations and is indexed about a horizontal axis. From each of the eight faces of the rotor projects a row of five equidistantly spaced spot carrying elements generally designated l1. These elements all extend like distances from the respective rotor face and provide cup-like receptacles for receiving and holding formed spots.

Each of the rotor supported carrier elements generally designated ll comprises a shank member I8 having a reduced, externally threaded stem portion l9 which is removably receivable in an internally threaded bore 20 provided in the rotor [6. Each shank member is equipped with an enlarged presser head portion 2i which provides an inwardly directed abutment shoulder 22. A cylindrical casing 23 is pin secured as at 24 on each shank l8 and is cored out to provide a sprin chamber 25, and each said casing is mounted in and projects radially from a counterbore 26 in the carrier rotor i6. A cylindriform spot holding and centering sleeve 21 is radially slidable in each casing 23, and a compression spring surrounds a reduced inner portion of the sleeve and engages at its respective ends with the casing 23 and with a shoulder on the sleeve for constantly urging the sleeve in the outward direction, the outward movement of the sleeve being limited by contact of a shoulder 29 thereof with the shank shoulder 22 previously referred to. It will be observed that the outer extremity of the shank head 2! does not extend out to the end of the sleeve 21 and thus cooperates with the sleeve in providing a cup-like receptacle for holding spots.

In order to facilitate attachment and holdingand their mounting lugs 33, said inserts being shaped to provide gripping ribs 34'for engaging and frictionally retaining edge portions of formed spots deposited within the end extremity of the respective sleeve 21. If desired, the outer end of each sleeve may also be provided with suction relief notches 35.

As in the machine structure disclosed in the earlier filed application, the web of foil, coated at one face with a heat fusible adhesive, is fed from a supply roll 36 over a take-up or feed roll 31. In passing from one roll to the other the web 38 passes over gL'lidel'Olls 39 and a spring urged tightener roll 40, and the direction of feed is diagonally, laterally, and upwardly in the manner clearly illustrated in Figures 1 and 3 in the drawings. A splined end extension 4| of the cam shaft It extends into a spline sleeve 42 rotatably supported within the punch mechanism housing 43, said housing being adjustablyslidably mounted as at 44 on the frame bed 5.

The sleeve 42 drives the shaft 45 forming a part of an intermittent feed mechanism (not shown) designed to feed the foil web through a helical ear couple 46, and this sleeve also .drives a cross shaft 41 through the bevel gear couple 48.

A punch slide 49 is slidably supported as at 50 on the punch mechanism housing 43 and is connected by a pitman 5| with an eccentric 52 secured on the cross shaft 41. It will be obvious that as the shaft 41 is rotated a reciprocatory movement will be imparted to the slide 49. The slide is provided with spaced cross bars 53 which serve to support a battery of five punch units, and the cross bars also are equipped with bores for frictionally receiving two side rods 54 which have limited 10st motion connection as at 55 in a bracket 56 fixedly supported on the housing. An adjustable stop screw 51 is carried by the bracket 56 and is engageable with the upper end of a rocker member 58 pivotally supported as at 59 on one of the slide cross bars 53. The punch members carried by this slide are designated 60 and are removably mounted as at 6| on the cross bar 53 nearest to the carrier rotor.

The punch members 60 operate through punch bores 62 in a punch block 63 carried by the rods 54, and a die plate 64 is affixed to the punch block. A suitable diagonally disposed slotway is disposed between the opposing faces of the block 63 and die plate 64 for positioning the foil web 38 so that the battery of five punch members 60 may pass through the web and simultaneously punch five spots therefrom. It should be understood that the punch members engage the web at the foil side and not at the heat'fusible adhesive bearing face thereof.

The punch elements 60 have axial bores therethrough and each bore mounts a reciprocable stripper rod 65. Each stripper rod 65 is equipped 61 which engages at one end with the removably 'asansso with the stripper rods 88. The tappets are engaged by the lower end of the rocket member 88 in the manner clearly illustrated in Figure 4.

.It .will be apparent that each time the slide 40 is advanced the punch members 80 will pass through the web 38 and simultaneously form five spots. .Just after the spots are thus formed by the punches the upper end of the rocker 80 will engage the stop screw 01 and rocking movement thus imparted to the rocker will cause the tappets "III to be advanced. and this advancement of the tappets will impart movement to the stripper rods 88 and cause the heads 88 to strip the formed spots from the punch members for a purpose that will later become apparent.

Between the carrier rotor l8 and the spot forming punch equipment. and parallel the axis of the horizontal rotor is mounted a transfer rotor shaft I2. This shaft is supported in a stationary bracket I3 secured to the machine framing, being mounted inanti-friction bearings I! supported by the bracket. A spur driver gear I! is secured on the shaft I2. being adjustably mounted as at 18 so that a measureof adjustment of the gear with relation to the shaft on which it is mounted can be effected.

The bracket I3 also supports bearings I1 for a rock shaft I8 which is disposed in spaced parallel relation to the rotor shaft I2. Two plate cams II are fixedly secured on the bracket as at 80 and each is provided with :a circular face groove II disposed concentrically with relation to the axis of the shaft 12, said grooves being disposed in opposed relation. Each plate cam I8 includes a displaceable sector 82 which includes a portion of the respective plate groove, and the'sectors are secured to arms. 83 adjustably mounted as at 84 on and projecting from the rock shaft 18 so that as the shaft is rocked the sectors will be moved outwardly, to displace the sector grooves from aligning relation with the remainder of the grooves in the plate cams, and then again inwardly to restore the sectors and again render complete the circular grooves. An actuator crank 88 is secured on the shaft I8, and this crank is connected by a pitman rod 88 with an actuating means which will be described hereinafter.

The indexing movement of the carrier rotor I8 is applied in the manner hereinbefore described, is transmitted to the transfer rotor shaft I2 ,through a spur gear 8'! mounted on the carrier rotor and a meshing intermediate gear 88 supported as at 88 on the bracket I8 and in turn meshing with the driver spur gear III which is adiustably secured on the transfer rotor shaft I2.

A transfer rotor 80 is fixed to the shaft I2 and v is provided with four stations or faces, it being understood that the driving connections between the transfer rotor and the carrier rotor are such that the faces thereof will be broughtinto opposition or perfect registry at each step movement of the carrier rotor.

In each face of the transfer rotor there is provided a radial slot 8I covered by a plate 82 which isremovably mounted on the rotor face as at 83. A bar 80 is mounted in .each slot 8i and is equipped at each end with a roller 88 which proiects beyond the end of the transfer roller and into one of the cam plate grooves 8i. It will be observed .by reference to Figures 5 and 8 of the drawings that each cam plate", is provided with a removable, groove defining wallportion 0r segment", and by removal of these segments and the cover plates 82 the bars 84 may be removed from the transfer rotor slots.

A battery of five plungers 81 project through bores in each bar 84, inward movementof the plungers relative to the respective bar 84 being prevented by shoulders 00, and outward movement of the plungers relative to the respective bar being prevented by a keeper plate 80 which enases the inner face of the bar and extends into recesses I00 formed in the plungers. At their inner ends the plungers extend into recesses IOI .formed in the transfer rotor shaft I3, and at their outer ends the plungers carry elector heads I02. The elector head I02 of each plunger 81 is recessed within a cup-like spot receiver I03 which is-carried at the outer end of a sleeve I 04 slidably surrounding the plunger within a'bore I00 formed in the plate 82. Spaced inwardly from the plate 02, each sleeve I04 is equipped with an abutment ring I08 designed to limit outward movement of the plungers 81 and receivers I03 relative to said plate. -A compression spring III'I is interposed between each abutment ring I08 and the opposing face of the respective bar 88 and serves to cause the plungers 91 and receivers I03 to move outwardly together until the a'butment rings I08 engage the respective plate 82, and then permit the plungers to move out- BIS wardly an additional distance relative to the receivers I03 so that the ejector heads I02 can displace spots which have been attached to and held in the receivers.

I The receivers I03 are provided with spot attaching or holding means of the same nature as those previously described in connection with the carrier rotor. For this purpose each cup-like receiver I03" has its inner face recessed as at I08 to provide sockets I08 for receivinginserts III) and their mounting lugs III so formed as to provide spot gripping ribs II! which engage and frictionally hold edge portions of spots deposited in the receiver I03 in the manner previously described.

From the foregoing description it will be apparent that the transfer rotor and the carrier rotor are indexed in timed relation so that if the one row of receivers I03 on the transfer rotor is presented in registry with the punch openings in the die plate 84 of the punching equipment, the diametrically oppositely disposed row of receivers I03 will be disposed in perfect registry with a .row of receivers on the carrier rotor. Each time this alignment of punches and receivers occur. a complement of spots will be punched and deposited in the receivers I03 registering with the punch openings and at the same time thecam plate sectors 82 will be displaced by a rocking of the shaft I8 to project the bar 94 then in engagetors 82 are replaced by reverse rocking movement of the shaft I8, and the means for rocking this shaft in proper timed relation to the indexing of the rotors will be described hereinafter.

A heating equipment in the form of gas bumers H3 is disposed above the carrier rotor I8 so as to directly apply heat to the spots which are held by the receivers 21 on that rotor as they are presented upwardly at the heating station as illustrated in Figure 1 of the drawings. Since the punches engage the foil web at the face thereof which is not coated the spots are deposited in the receivers I03 of the transfer rotor with the adhesive thereon directed inwardly, and are transferred into the receivers 21 of the carrier rotor I6 with the adhesive thereon directed outwardly so as to facilitate direct heating of the adhesive at the heating station. The heating means H3 is supported on an arm III which is pivotally mounted as at II5 so that the heating means can be moved away from the carrier rotor I8 whenever desired.

A crown cap feeding chute I I6 is disposed vertically in tangential relation to the path of travel of the receiving ends of the carrier rotor receivers 21 in position for placing successive rows of crown caps so that the end extremities of the receivers 21 approaching the spot aflixing station which is diametrically oppositely disposed with relation to the'station at which the receivers 21 receive the spots will enter the crown caps and deposit the now tacky spots therein in the manner clearly described in the previously filed ap-' plication hereinbefore referred to.

The. spots thus applied are pressed by a reciprocable presser segment III mounted on a slide II8 having rack and gear connection as at '9 with a horizontally disposed rock shaft I20. Rocking movement is applied to, the shaft I20 by a crank and roller connection as at I2I with an actuator cam I22 secured upon the cam shaft I0. vanced it presses the crown caps against the ends of the shank presser heads 2I aligned with the segment so as to assure firm attachment of the spots with the crown'cap pads.

The rock shaft I20 is provided with an eccentric I23 which turns in an opening provided therefor in an actuator arm I24 fulcrumed at its lower end as at I25 on a fixed support and adjustably connected at its upper end with the thrust rod 86 for imparting movement to the plate cam sector arms in the manner hereinbefore described.

It will be observed by reference to Figure 1 of the drawings that as the carrier elements on the carrier rotor approach the bottom or crown cap discharging station, the spotted crown caps on the ends thereof engage stripper fingers I26 which strip them from the elements and. cause them to fall onto a take-off conveyor I2'I by which they are conveyed out of the machine.

It is of course to be understood that the details of structure and the arrangement of parts may be variously changed and modified without departing from the spirit and scope of the invention.

I claim:

1. In a crown cap and spot assembling machine having a spot forming station, means for supporting heat fusible adhesive coated material at the spot forming station, spot punching means at the spot forming station for punching spots from the heat fusible adhesive coated material, a multi-faced transfer rotor, a multi-faced carrier rotor, means for indexing the rotors about horizontal axes, cup-like spot receivers project- Each time the presser segment II! is ading radially in groups from the faces of both rotors, means for forcing spots formed by the punching means directly into receivers on the transfer rotor to be held and carried therein, means for forcing spots from the receivers on the transfer rotor into receivers on the carrier rotor to be held and carried therein, means for directly heating the spots while being carried by the carrier rotor and at a point remote from the punching station, said machine also having a spot and crown cap assembling station, and means for bringing the spots and crown caps into contacting relation at the assembling station for uniting the spots held and heated on the carrier rotor with the crown caps by amxing the ad- 'hesively coated face of the spots against the crown caps.

' a generally cylindriform rotor rotatable about a fixed axis, rows of cup-like spot receiving elements disposed in equidistantly spaced relation about the circumference of the'rotor, each said row comprising a plurality of said elements all extending like distances from the rotor with their axes projected radially in a common plane and in parallel equidistantly spaced relation, means for indexing the rotor to present the element rows at successive stations including a spot forming station and a spot delivering station, means reciprocably mounted in fixed position at the spot forming station for forming spots and depositing them in the successively presented receiving element rows, spot ejecting plungers in the elements of each row, and means for actuating the plungers successively presented at the delivering station for ejecting the spots from the elements at that station.

3. In a machine of the character described, a generally cylindriform rotor rotatable about a fixed axis, rows of cup-like spot receiving elements disposed in equidistantly spaced relation about the circumference of the rotor, each said row comprising a plurality of said elements all extending like distances from the rotor with their axes projected radially in a common plane and in parallel equidistantly spaced relation, means for indexing the rotor to present the element rows at successive stations including a spot forming station and a spot delivering station, means reciprocably mounted in fixed position at the spot forming station for forming spots and depositing them in the successively presented receiving element rows, spot ejecting plungers in the elements of each row, a bar connecting the plungers in each element row for movement together, and means for moving each bar presented at the delivering station radially outwardly to cause the connected plungers to eject spots from the elements presented at the delivering station.

4. In a machine of the character described, a generally cylindriform rotor rotatable about a fixed axis, rows of cup-like spot receiving elements disposed in equidistantly spaced relation about the circumference of the rotor, each said row comprising a plurality of said elements all extending like distances from the rotor with their axes projected radially in a common plane and in parallel equidistantly spaced relation, means for,

. 9,891,840 of each row, a bar connecting the plungers in each element row for movement together, each said bar having a roller projecting beyond each end thereof and beyond the end of the rotor, and

means engageable with the rollers of each bar at the delivery station for moving the connected bar to cause the connected plungers to move fixed axis, rows of cup-like spot receiving elements disposed in equidistantly spaced relation about the circumference of the rotor. each said row comprising ,a plurality of said elements all extending like distances from the rotor withtheir axes projected radially in a common plane and in parallel equidistantly spaced relation, means for indexing the rotor to present the element rows at successive stations including a spot forming station and a spot delivering station, means at the spot forming station fo forming spots and depositing them in the successively presented receiving element rows, spot electing plungers in the elements of each row, a bar connecting the plungers in each element row for movement together. each said bar having a roller projectingbeyond each end thereof and beyond the end of the rotorra plate cam stationarily mounted at each end of the rotor and having a bar roller receiving groove in the face thereof opposing the rotor and arranged concentrically to the rotor axis, each said plate including a displaceable sector disposed at the delivering station and including a portion of the groove, and means for displacing the plate sectors outwardly each time a bar comes to rest at the delivering station to move the connected plungers outwardly and elect spots from the elements presented at the delivery station.

6. In a machine of the character described, a generally cylindriform rotor rotatable about a fixed axis, rows of cup-like spot receiving elements disposed in equidistantly spaced relation about the circumference of the rotor, each said generally cylindriform rotor rotatable about a fixed axis, rows of cup-like spot receiving elements disposed in equidistantly-spaced relation about the circumference of the rotor,- each said row comprising a plurality of said elements all extending like distances from the rotor with their axes projected radially in a common plane and in parallel equidistantly spaced relation, means for indexing the rotor to present the element rows at successive stations including a spot forming station and a spot delivering station, means at the spot forming station for forming spots and depositing them in the successively presented receiving element rows, spot ejecting plungers in the elements of each row, a second rotor arranged parallel the first and having similarly extended rows of cup-like receiving eleme nts and indexed in timed relation with the first rotor to cause the respective rows of receiving elements of the rotors to register at the deliveringstation and to successively present the elements of the second rotor at the delivering station and at other stations including a heating station and a spot applying station, and means for actuating row comprising a plurality of said elements all extending like distances from the rotor with their axes projected radially in a common plane and in parallel equidistantly spaced relation, means for indexing the rotor to present the element rows at successive stations including a spot forming station and a spot delivering station,

mounted at each end of the rotor and having a bar roller receiving groove in the face thereof opposing the rotor and arranged concentrically to the rotor axis. each said plate including a displaoeable sector disposed at the delivering station and including'a portion of the groove, and, a

means for displacing the plate sectors outwardly each time a bar comes to rest at the delivering station to move the connected plungers outwardly and eject spots from the elements presented at the delivery station, each said plate also including a marginal groove defining wall portion removably mounted so as to permit radial withdrawal of the bars and the connected plungers.

7.-In a machine of the character described, a

' ments disposed in equidistantly spaced relation the plungers presented at the delivering station to displace spots from the respective elements of the first rotor and deposit them in the registering elements of the second rotor.

8. In. a machine of the character described, a generally cylindriform rotor rotatable about a fixed axis, rows of cup-like spot receiving elements disposed in equidistantly spaced relation about the circumference of the rotor, each said row comprising a plurality of said elements all extending like distances from the rotor with their axes projected radially in a common plane and in parallel equidistantly spaced relation, means for indexing the rotor to present the element rows at successive stations including a spot forming station and a spot delivering station, means at the' spot forming station for forming spots and depositing them in the successively presented receiving element rows, spot ejecting plungers in the elements of each row, a bar connecting the plungers in'each element row for movement together, each said bar having a roller projecting beyond each end thereof and beyond the end of the rotor, a plate cam stationarily mounted at each end of the rotor and having a bar roller receiving groove in the face thereof opposing the rotor and arranged concentrically to the rotor axis, each said plate including a displaceable sector disposed at the delivering station and in.- cluding a portion of the groove, a second rotor arranged parallel the first and having similarly extended rows of cup-like receiving elements and indexed in timed relation with the first rotor to cause the respective rows of receiving elements the plate sectors outwardly each time a. bar

comes to rest at the delivering station to move the connected plungers outwardly to eject spots from the respective elements of the first rotor and deposit them in the registering elements of the second rotor.

9. In a machine of the character described/ a generally cylindriform rotor rotatable abouta fixed axis, rows of cup-likespot receiving eleabout the circumference of the rotor, each said row comprising a plurality of said elements all extending like distances from the rotor with their axes projected radially in a common plane and in parallel equidistantly spaced relation, means for indexing the rotor to present the element rows at successive stations including a spot forming station and a spot delivering station, means at the spot forming station forjorming spots and depositing them in the successively presented receiving element rows, spot ejecting plungers in the elements of each row, a second rotor arranged parallel the first and having similarly extended rows of cup-like receiving elements and indexed in timed relation with the first rotor to cause the respective rows of receiving elements of the rotors to register at the delivering station and to successively present the elements of the second rotor at the delivering station and at other stations including a heatlngstation and a spot applying station, and means operable each time two rows of elements on said rotors are presented in registry at the delivering station for first moving the elements of the first rotor radially into very close registering proximity to the registering elements of the second rotor and then for moving the particular plunger group radially outwardly to displace spots from the first rotor ele-'- axes projected radially in a common plane and in parallel equldistantly spaced relation, means for indexing th rotor to present the element rows at successive stations including a spot forming station and aspot delivering station, means at the spot forming station for forming spots and depositing them in the successively presented receivin element rows, spot ejecting plungers in the elements of each row, a second rotor arranged parallel the first and having similarly extended rows of cup-like receiving elements and indexed in timed relation with the first rotor to cause the respective rows of receiving elements of the rotors to register at the delivering station and to successively present the elements of the second rotor at the delivering station and at other stations including a heating station and a spot applying station, means mounting the receiving elements of the .first rotor on the plungers thereof for limited radial movement with the plungers, and means for actuating the plungers presented at the delivering station to first move the elements mounted thereon radially outwardly into very close registering proximity to the registering elements of the second rotor and then the plungers alone an additional distance to displace spots from the outwardly moved elements and deposit them in said registering elements.

plungers in each element row, each said bar having a roller projecting beyond ach end thereof and beyond the end of the rotor, means yieldably mounting the receiving elements on the plungers for movement with the plungers, means limiting outward movement of the receiving elements, and means engageable with the rollers of each bar for moving the connected plungers and receiving elements outwardly the distance said elements can move and then the plungers an additional distance relatively to said elements as electors.

12. In a machine of the character described comprising a generally cylindriform rotor rotatable about a fixed axis, rows of cup-like spot receiving elements disposed in equidistantly spaced relation about the circumference of the rotor, each said row comprising a plurality of said elements all extending like distances from the rotor with their axes projected radially in a common plane and in parallel equidistantly spaced relation, spot ejecting plungers in the elements of each row, a bar connecting the plungers in each element row, each said bar having a roller projecting beyond each end thereof and beyond the end of the rotor, means yieldably mounting the receiving elements on the plungers for movement with the plungers, means limiting outward movement of the receiving elements, a plate cam stationarily mounted at each end of the rotor and having a bar roller receiving groove in the face thereof opposing the rotor and arranged concentrically to the rotor axis, each said plate ineluding-a displaceable sector including a portion of the groove, and means for displacing th sectors outwardly when a pair of rollers are in the sector grooves to move the particular bar and the connected receiving elements outwardly the distance said elements can move and then the plungers an additional distance relatively to said elements as ejectors.

13. In a machine of the character described comprising a generally cylindriform rotor rotatable about a fixed axis, rows of cup-like spot receiving elements disposed in equidistantly spaced relation about the circumference of the rotor, each said row comprising a plurality of said elements all extending like distances from the rotor with their axes projected radially in a common plane and in parallel equidistantly spaced relation, spot ejecting plungers in the elements of each row, a bar connecting the plungers in each element row, each said bar having a roller projecting beyond each end thereof and beyond the end of the rotor, means yieldably mounting the receiving elements on the plungers for movement with the plungers, means limiting outward movement of the receiving elements, a plate cam stationarily mounted at each end of the rotor and having a bar roller receiving groove in the face thereof opposing the rotor and arranged concentrically to the rotor axis, each said plate including a displaceable sector including a portion of the groove, and means for displacing the sec-' tors outwardly when a pair of rollers are in the sector grooves to move the particular bar and the connected receiving elements outwardly the distance said elements can move and then the plungers an additional distance relatively to said elements as electors, said sector displacing means including a rock shaft, a shaft rocking crank, and a pair of cranks secured to the shaft and attached to the sectors for imparting movement to the latter.

14.1n a pad and spot assembling machine having a spot forming station and a spot and pad assembling "station, means at said spot forming station for punch-forming spots from adhesive coated material, a rotary carrier on which the spots are deposited as they are punched, a second rotary carrier, means for transferring the spots from the first mentioned carrier to the second carrier. means for operating the carriers in timed relation, means for directly heating the spots on th second carrier while moving toward the assembling station for rendering the adhesive thereon tacky, said heating means constituting the sole heating means and being arranged ad- Jacent the second carrier only at a point remote from the punch-forming means and the first mentioned carrier, means ior presenting pads at the assembling station, arid means for bringing the spots and pads into contacting relation at the assembling station for uniting the spots and pads by aflixing the adhesive coated faces of the spots to the pads.

15. In a pad and spot assembling machine having a spot forming station and a spot and pad assembling station, means at said spot forming station for punch-forming spots from adhesive coated material with the punch passing through from the non-coated sid of said material, a rotary carrier on which the spots are deposited as they are punched with the adhesive coated faces of the spots directed inwardly, a second rotaryv carrier, means for transferring the spots from the first mentioned carrier tovthe second carrier with the adhesive coated faces of the spots directed outwardly, means for directly heating the spots on th second carrier while moving toward the assembling station for rendering the adhesive thereon tacky, said heating means constituting the sole heating means and being arranged adjacent the second carrier only at a point remote from the punch-forming means and the first mentioned carrier, means for presenting pads at the assembling station and means for bringing the spots and pads into contacting relation at the assembling station for uniting the spots and pads by afii'xing the adhesive coated faces of the spots to the pads.

16. In a pad and spot assembling machine having a spot forming station and a spot and pad assembling station, means at said spot forming station for punch-forming spots from adhesive.

coated material, a rotary carrier on which the spots are deposited as they are punched, a second rotary carrier, means for transferring the spots from the first mentioned carrier to the second carrier, means for operating the carriers in timed relation, means for directly heating thespots on a 17. In a, pad and spot assembling machine having a spot forming station and a spot and pad assembling station, means at said spot forming station for punch-forming spots from adhesive coated material with the punches passing through from the non-coated side of said material, a rotary carrier on which the spots are deposited as they are punched with theadhesive coated faces of the spots directed inwardly, a second rotary carrier, means for transierring the spots from the first mentioned carrier to the second carrier with the adhesive coated faces of the spots directed outwardly, means for operating the carriers in timed relation, means for directly heating the spots on the second carrier while moving towardthe assembling station for rendering the adhesive thereon tacky, said heating means constituting the sole heating means and being arranged, ad- Jacent the second carrier only at a point remote from the punch-forming means and the first mentioned carrier, means for presenting pads at the assembling station, means for bringing the spots and pads into contacting relation at the assembling station for uniting the spots and pads by afllxing the adhesive coated faces of the spots to the pads, and means on each rotary carrier for attaching the spots thereto and holding them,thereon so that control or the accurate positioning of the spots is never lost from the time they are punched through their travels' on the carriers and completion of their attachment to the pads.

the second carrier while moving toward the assembling station for rendering the adhesive thereon tacky, said heating means constituting the sole heating means and being arranged adjacent the second carrier only at a point remote from the punch-forming means and the first mentioned carrier, means for presenting pads at the assembling station, means for bringing the spots and pads into contacting relation at the assembling station for uniting the spots and pads by afilxing the adhesively coated faces-of the spots to the pads, and means on each rotary carrier for attaching the spots thereto and holding them thereon so that control of the accurate positioning of the spots is never lost from the time they are .punched through their travels on the I 18. In a pad and spot assembling machine having a spot forming station and a spot and pad assembling station, means at said spot forming station for punch-forming spots from adhesive coated material, a rotary carrier on which the spots re "deposited as they are punched, a second iotary carrier, means for transferring the, spots from the first mentioned carrier to the second'carrier, means for operating the carriers in timed relation, means for directly heating the spots on the second carrier while moving toward the assembling station for rendering the adhesive thereon tacky, said heating means constituting the sole heating means and being arranged adjacent the second carrier only at a point remote from the punch-forming means and the first mentioned carrier, means for presenting pads at the assembling station, means for bringing the spots and pads into contacting relation at the assembling station for uniting the spots and pads by aflixing 'the adhesive coated faces of the spots to the pads, and complete circular cup-like means on each rotary carrier for receiving and holding spots delivered thereto. a

19. In a pad and spot assembling machine having a spot forming station and a spot and pad assembling station, means at said spot formond carrier, means for directly heating the spots on the second carrier while'moving toward the assembling station for rendering the adhesive thereon tacky, said heating means constituting the sole heating means and being arranged ad- Jacent the second carrier only at a point remote from the punch-forming means and the first mentioned carrier, means for presenting pads at the assembling station, means for bringing the spots and pads into contacting relation at the assembling station for uniting the spots and pads by affixing the adhesive coated faces of the spots to the pads, complete circle cup-like means on and projecting radially from each rotary carrier for receiving and holding spots delivered thereto, and means for causing the rotary carriers to rotate in timed relation so that said transferring .means will accurately transfer spots from the first mentioned carrier to the second carrier.

20. In a pad and spot assembling machine having a spot forming station and a spot and pad assembling station, means at said spot forming station for punch-forming spots from adhesive coated material, a rotary carrier on which the spots are deposited as they are punched, a second rotary carrier, means for transferring the spots from the first mentioned carrier to the second carrier, means for operating the carriers in timed relation, means for directly heating the spots on the second carrier while moving toward the assembling station for rendering the adhesive thereon tacky, said heating means constituting the sole heating means and being arranged adiacent the second carrier onl at a point remote from the punch forming means and the first mentioned carrier, means for presenting pads at the assembling station, means for bringing the spots and pads into contacting relation at the assembling station for uniting the spots and pads by aflixing the adhesive coated faces of the spots to the pads, reciprocable means for applying pressure to spots after they are united with the pads, actuator means for said pressure applying means, and means operated from said actuator means for operating said spot transferring means.

PAUL E. PEARSON. 

